How should devices that might harbor biofilm be maintained to ensure sanitation?

• A. Disinfecting only.
• B. No cleaning required.
• C. Occasional wiping with water.
• D. Regular cleaning, proper disinfection, and scheduled sterilization per manufacturer guidelines.

Answer: (D)

Maintaining devices that may harbor biofilm requires a multi-step approach: regular cleaning to physically remove debris and biofilm, thorough disinfection to kill remaining microbes, and scheduled sterilization for devices that contact sterile areas or mucous membranes, all performed per manufacturer guidelines. Biofilm forms a protective layer that can shield microbes from disinfectants, so cleaning is essential before disinfection to ensure effectiveness. Some devices truly require sterilization to achieve the highest level of microbial control, and manufacturer guidelines tell you exactly which methods are compatible with each instrument. Following a scheduled routine ensures consistent sanitation and protects clients, while deviating from cleaning, disinfection, or sterilization practices increases the risk of contamination. Disinfecting alone won’t remove biofilm; cleaning without disinfection may leave microbes behind; and doing nothing or only wiping with water is unsafe.